So a tongue bar at 16mm, i've had it for about a month, either it's too big for my tongue or my tongue is too small, the top of my bar is resting against the top of my tongue, which is causing a split to appear. It's not all the way through, it's just the top layers on my tongue.
I don't know whether to go smaller with my tongue bar, leave it alone completely or just take the damn thing out. ;.;